From ae907f38f0b35867795befa04640f7346c6be522 Mon Sep 17 00:00:00 2001 From: Rob Landley Date: Sun, 9 Oct 2005 11:16:01 +0000 Subject: [PATCH] When lstat returns an error (such as file not found), the value of st_mode is random garbage (under uClibc), leading to random triggering of the S_ISDIR() case when the destination will be a normal file which doesn't exist yet. I.E. checking the return value of lstat is not optional. --- coreutils/install.c | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) diff --git a/coreutils/install.c b/coreutils/install.c index d0460412e..9fcb75405 100644 --- a/coreutils/install.c +++ b/coreutils/install.c @@ -51,7 +51,6 @@ static const struct option install_long_options[] = { extern int install_main(int argc, char **argv) { - struct stat statbuf; mode_t mode; uid_t uid; gid_t gid; @@ -59,9 +58,7 @@ extern int install_main(int argc, char **argv) char *uid_str = "-1"; char *mode_str = "0755"; int copy_flags = FILEUTILS_DEREFERENCE | FILEUTILS_FORCE; - int ret = EXIT_SUCCESS; - int flags; - int i; + int ret = EXIT_SUCCESS, flags, i, isdir; bb_applet_long_options = install_long_options; bb_opt_complementally = "!s~d:d~s"; @@ -112,15 +109,16 @@ extern int install_main(int argc, char **argv) return(ret); } - cp_mv_stat2(argv[argc - 1], &statbuf, lstat); + { + struct stat statbuf; + isdir = lstat(argv[argc - 1], &statbuf)<0 + ? 0 : S_ISDIR(statbuf.st_mode); + } for (i = optind; i < argc - 1; i++) { unsigned char *dest; - if (S_ISDIR(statbuf.st_mode)) { - dest = concat_path_file(argv[argc - 1], basename(argv[i])); - } else { - dest = argv[argc - 1]; - } + dest = argv[argc - 1]; + if (isdir) dest = concat_path_file(argv[argc - 1], basename(argv[i])); ret |= copy_file(argv[i], dest, copy_flags); /* Set the file mode */ @@ -140,6 +138,7 @@ extern int install_main(int argc, char **argv) ret = EXIT_FAILURE; } } + if(ENABLE_FEATURE_CLEAN_UP && isdir) free(dest); } return(ret); -- 2.25.1